crosman



June 27, 1933. P, CRQSMAN 1,915,296

REGISTER Filed Aug. 22, 1951 11 Sheets-Sheet 1 #1 ll 0 Q3 ego 000006) INVENTOR Loflirg P. Crosman Jazz? NEY June 27, 1933. L. P. CROSMAN 1,915,296

REGISTER Filed Aug. 22, 1951 11 Slieets-Sheet 2 INVENTOR Zoning P,

Filed Aug. 22, 1931 11 Sheets-Sheet I5 E] "canto z Zoning P C/"OS-QLELQ 35% Que M4013 6 June 27, 1933. L. P. CROSMAN REGISTER Filed Aug. 22, 1931 ll Sheets-Sheet 4 vwcutm, NWQ P Chosrpan 823mm June 27, 1933. L. P. CROSMAN REGISTER Filed Aug. 22, 1931 ll Sheets-Sheet 5 INVENTOR n I L g gpf'r osmaq June 27 1933. L. P. cRosMAN REGISTER Filed Aug. 22, 1951 ll Sheets-$heet 6 ENVENTQR ffcr m a Mina (6pm A TOLRSQEQZQ" June 27, 1933. p CROSMAN 1,915,296

REGISTER Filed Aug. 22, 1931 11 Sheets-Sheet 7 INVENTOR June 27, 1933. L. P. CROSMAN REGISTER Filed Aug. 22, 1931 ll Sheets-Sheet 8 June 27, 1933- L. P. CROSMAN REGI STER Filed Aug. 22, 1931 ll Sheets-Sheet 9 INVENTOR I Lor -i1 9 C as/72. 17

J k/QeTTORNEY June 27, 1933. L. P. CROSMAN REGISTER Filed Aug. 22, 1931 ll Sheets-Sheet 1O 'INVENTOR Z0 #1 qPCrqsman June 27, 1933. CROSMAN 1,915,296

REGISTER Filed Aug. 22, 1931 ll Sheets-Sheet ll INVENTOR I zo-ring P Cnosman;

JW A'rrdRNEY clutch control mechanism, etc. I Fig. 4 is a right-hand side elevation of the machine, with the casing broken away.

Patented June 27, 193.3

UNITED STATES PATENT OFFICE IDRING P. CROW, OI KAPLEWOOD, NEW JERSEY, ASSIGNOB 1'0 GARDNER 001mm, ORANGE, NEW JERSEY, A. CORPORATION 01' DELAWARE Y REGISTER Application filed a 21:, m1. Serial ll'o. assess.

The invention relates to registers, and more particularly to means for registering true negative totals.

In adding and subtracting and in calculating machines totals which represent negative values commonly appear upon the register wheels as the complements of such values, so

that an amount which is minus 18 would be registered as 99982, and if the total is printed, this complemental value will appear upon the slip, instead of the true negatlve total 18.

According to the present invention, when totals are taken, the machine operates as usual so long as the value registered is positive, but in case of a negative value, the complement will be automatically converted to the true negative total, and so displayed.

In the present application, the invention is shown as applied to a register of the Gardner type, disclosed in its essential features in the U. S. patents to Clyde Gardner, deceased, No. 1,882,180, issued October 30, 1931 and No. 1,867,002, issued July 12, 1932, both entitled Calculating machines.

The invention is also shown as utilizing certain improvements upon the above-noted structure, disclosed in U. S. application of Loring P. Crosman, entitled Register, filed February 25, 1931.

In theaccompanying drawings, illustrating the invention:

Fig. 1 is a plan view of a calculating machine embodying the invention.

Fig. 2 is a transverse section, showingthe registering and printing mechanism.

Fig. 3 is a transverse section, showing-the Fig. 5 is a side elevation of the totalizing v mechanism.

Fig. is a detail view of the special type symbol control devices.

Fig. 11 is a diagram illustrating the three operations of the register performed in takin a negative total.

ig. 12 is a detail elevation of the operation control devices.

trol mechanism in position assumed immediately after depression of the total ke Fig. 14 is a similar view, showing t e arts in position assumed after operation 0 the total setting spring.

- Fig. 15 is a similar view, showin the parts in position assumed upon relatchmg of the total segment. g Fig. 16 is a similar view, showing the parts in position assumed upon automatic tripping of the total segment.

, Fig. 17 is a detail perspective view of the negative total setting shaft and associated pprts, shown in a position taken during opera ion.

Addition and. subtraction For each denominational order, the machine is provided with a three-armed actuator lever, numbered 610 on the drawings, (Fig. 2), these levers being loosely mounted on a shaft 608. The forward arm of each lever 610 terminates in a segmental registering rack; the rearward arm has a lister type bar 611 pivotedthereto, and the up er arm has pivotal connection with a difl rential stop bar 615 cooperating with a bank of digit keys 215 to limit the movement of the lever The digit keys 215 which have been depressed to represent a value arelatched in osition with the bottoms of their stems lymg in the athof movement of the related stop lugs o the bars 615, allowing such bars to advance a distance proportional to the value of the key, upon operation of the machine. Depression of a digit key will also remove a column latch 214 from the path of movement ofits related bar 615, these latches preventing movement of a stop bar and lever 610 in any column in which no key is depressed.

Fig. 13 is a detail elevation of the total con A rock shaft 301 is provided with cam means 318 for governing the movement of a spring tensioned rocker frame 616, mounted on shaft 608, frame 616 carrying a series of dogs 617 normall engaged y studs 659 of the levers 610. s shaft 301 is rotated forwardly, frame 616 will be rocked, and an of the levers 610 which have been rele by the depression of digit keys will be allowed to rotate, under the influence of their springs 683, until they are stopped by the lugs of bar 615 contacting with the stems of the eye Upon rearward rotation of shaft 301, the dogs 617 will return the operated levers 610 to normal position. This excursion of the levers 610 serves to register amounts set in the keyboard upon one or more accumulators and to set up a similar amount on the printing line of the type bars.

Shaft 301 is oscillated by means of an electric motor 100, connected through gearina 101 (Fig. 3) and suitable clutch means, with a crank arm 105. connected to an arm 316, fast with shaft 301, by means of a connecting rod 108. so that as crank arm 105 1s rotated shaft 301 will be oscillated.

Clutch lever 106 is provided with an insulated roller adapted to close contact members 110 (Fig. 4) after lever 106 is moved out of restraining engagement with thespring operated clutch. Contacts 110, constitute circuit breaking devices in the electrical connection of motor 100.

Spring 111 tends to pulllever 106 away from the clutch, the lever being normally held in engaging position by means of a latch 112. Latch 112 is controlled by a trigger 113, lying in the path of movement of a lever arm connected with an add key or plus bar 114. Upon depression of key 114, trigger 113 will release latch 112 and clutch lever 106 will be pulled out of engagement with the clutch to start the machine in operation.

Upon release of key 114 latch 112 will return under spring action into latching position, and toward the end of the cycle of operation an arm 115 connected with the crank member 105 will contact with a tooth 116 of the clutch lever 106 and will force said lever back into latching position, breaking the electric circuit and bringing the end of lever 106 into the path of movement of the rotating clutch member.

The above-described excursions of the levers 610 efi'ect positive or negative registration of values set up in the keyboard in the following manner:

The segmental racks of the levers 610 are designed to operate the accumulator wheel gears 47 2 (Fig. 2) of one or more accumulators. These accumulators are shown in Patent 1,867,002, as means for storin positive or negative totals, to be printed. ens carry mechanism is provided, according to the disto provide for additive registration, wherein the accumulator shaft 403 will be moved away from the racks of levers 610 before said racks are allowed to move, and will be moved to reengage the gears 472 while the racks lie in the extreme positions permitted by the keys 215 and stop bars 615. As shaft 301 is returned, and the racks are raised, the value set in the ke board will be additively transferred to the register.

In order to register items negatively in one or more accumulators without leavin the mechanism set for this type of operation, a subtract key or minus bar 274 (Fig. 4) is located adjacent the lus bar 114. The free end of the subtract ey lever is adapted to contact with and rock a plate 117 in a clockwise direction as viewed in Figure 4, said plate in turn operating the trigger 113 to release latch 112 and start the machine in operation. Plate 117 is secured upon the end of shaft 118, which runs across the machine, said shaft havin an arm 121 (Fig. 3) secured thereon and having a link connection 122 with the control devices of the cam plate 419. The cam plate is connected, through link 321 (Fig. 12) with a rocker 325, provided with two cam followers adjustable b a plate 326 (engaged, for instance, by the link 122) to cooperate differentially with two cam arms, 316 and 320, on shaft 301, so that rocker 325 and cam plate 419 will be moved and the segments meshed and unmeshed with the accumulator gears at the proper times. These control devices are fully described in Patent 1,867,002, and when readjusted by forward movement of link 122, upon depression of the minus bar, the time at WhlCh the accumulators are shifted out of and into mesh with the segmental racks is changed, so that the accumulators remain in mesh during the first or downward stroke of the racks, and consequently register subtractively. During the upward stroke of the racks the accumulators are released from the action of the cam plate 419 and are pulled out of mesh by their springs.

Total printing A total is taken by releasing the differential stop bars 615 and allowing them to rotate the accumulators subtractively until suitable pins on the accumulator wheels contact with 0 stop members. This will set the total in the type tion by contact of the total key lever with a pin 352 (Fig. 12) on rocker controlplate 326, the total key thus holding the platejree of the forward cam follower, so that the accumulators will. not be disengaged at the beginning of the operation, by the action of cam arm 320. On the return stroke of the parts, the forward cam follower, coacting with cam arm 320, will disengage the accumulators latch. Latch 620 normally engages a lug on total segment 618, preventing movement of said segment under the influence of the total spring 681. Upon tripping of the latch, segment 618 will operate a shaft having a spirally arranged row of pins 651, acting to trip the latching dogs 617 successively from right to left of the machine, the tripping of said dogs releasing the segments and also releasing stop members 613 (Fig. 2), so that they will fall into the path of the 0 stops 457 on the accumu-' lator wheels. The successive release of the differential stop bars 615'by the latches 214 is essential because of the character of the tens transfer mechanism employed between the accumulator wheels. As described in Patent 1,828,180, hereinbefore referred to,

- this carry mechanism is of the crawl type,

wherein every unit of movement of a lower order wheel will transmit one-tenth of a unit of movement to the next adjacent higher order wheel. Therefore, in zeroizing, as each lower order wheel is returned to 0, it will subtract from the higher order wheel the fractional movements previously transmitted.

When this zeroizing operation has progressed to the left hand side of the machine, a rearwardly extending arm of the total segment 618 will contact with a projection of a rod 130 (Figs. 3 and 5) connected at its other endto a trigger 131, adapted to release latch 112, to start the machine. The machine being put in operation, frame 616 will carry the dogs 617 forwardly, so that they will snap under the' stop members6l3 and studs 659 of the segment levers. The hammers will now be tripped, and upon rearward movement of frame 616 the segments and total stops will be restored to normal position.

The machine is set for subtractive opera-' from the segments. The described setting of The real key is locked indep tion, and is released near the end o --the cycle of motor operation by'engagement of a finger pf arm 327 above a click pawl 222 of latch striker 220, the parts of-the total setting mechanism'being then restored to normalposition as follows:

In tripping the total segment latch (Fig.

5), shaft 206 is rocked, an arm 229 on said shaft contacting with a pin 132 in thejlatchoperatin arm 6 21. The latch being tripped, and totafsegment 618 rising, the latching In of the segment will be brought in contact wit lever 621, moving pin 132out of contact with arm 229 and into. contact with a shoulder 133 of a rock plate 134, pin 132 being held against said shoulder by the latch spring. During the following motor operation of. the machine, the forward movement ofrocker cam 318 will release a spring tensioned ush rod 135 (Fig. 6) connected with rocker p ate 134, and shoulder 133 will be rotated until pin 132 comes below arm 229, restorin latch 620 and arm 229 to normal position y the action of the latch spring, as soon as the total key is released, thus concluding the totalizing operation.

The type bars 611 are provided each with a row of type, representing the digits 1 to 9 and 0, the 0 or zero t pe being normally on the printing line. en the levers 610 are moved in accordance with a key setting or an accumulator registration, the related type bars will be raised to bring the appropriate type to the printing lines.

The type hammers 715 (Fig. 2) are adapted to be operated by spring actuators 700, but are normally held in tensioned position by latches 701. When a type bar is lifted, a tripping finger 702 is allowed to move into engagement with the corresponding latch 701,

and at thevend of the forward rotation of planes of and designed to trip the lower order latches.

The hammers are restored and relatched during the return rotation of shaft 301 by means of a bail 707, operated through a reciprocatory cam.

At the end of-each registering or totalizing operation the record paper platen will be rotated by a line space mechanism (Fig. 7), operated from a shaft 302, oscillated by means of a link connection 324 (Figs. 3 and 5) between the cam a'rm 316 and an arm 327 of shaft 302. The forward excursion of cam arm 316, oscillating shaft 302, will move arm 394, plate 393, levers 395, 396, and818, (fulcrumed turn movement 0 the parts will act to restore link 816 to normal position, advancing the platen and disengaging pawl 814.

Negative totals In taking a total, amounts carried up to the accumulator wheel located to the left of the keyboard are transferred to the printin devices by means of a two-armed lever 140 Fig. 8), similar to the levers 610, but having no connection with the keyboard. This lever 140 is normally held inactive by a latch 141, which in total taking is tripped by a finger 142 on the shaft 607 controlling the successive release of the segments.

If the total is negative, the complemental registration in the accumulator will include a nine in the above-mentioned left hand wheel, and the movement of lever 140 from eight to nine printing position is utilized to set the true negative total devices in operative position.

It will be noted from the above that the first step in total taking is the same, whether such total be positive or negative, the accumulator being zeroized and the total being set up in the type bars. It will also be obvious that, owing to the crawl type carry mechanism, it would be impractical to determine, by the position of lever 140, or of its accumulator wheel, whether an amount standing in a given accumulator was of positive or negative character, until the total segment 618 had operated, and the type bars had been set.

The method of converting the complement of a negative total, set in the type bars, to the true negative total is as follows:

A set of stops 143 (Fig. 2), yieldably engaging the stop bars 615 are locked in position as adjusted thereby in accordance with the complemental registration and the segments 610 are restored idly to normal position. The segments are now again released and will be stopped by the stops 143, the accumulator being meshed during this subtractive stroke of the segments, whereby the complement is subtracted from zero, giving a registration of the true negative total. The segments are again restored idly to normal position by a cycle of operation of frame 616, and the stops 143 are released, so that a second zeroizing operation will now transfer the true total to the type bars. The printing of the total, which normally occurs at the end of the first total setting operation has in this case been delayed, and will occur after the true total is set. The above sequence of operations is illustrated in the diagram, Fig. 11, wherein an accumulator wheel registering minus 1 is indicated. These operations involve three cycles of motor operation and two total setting actions of segment 618.

In moving from eight to nine printing position,. lever 140 contacts with a latch plate 144 Figs. 8 and 17 and' moves the same out of engagement with an arm 145 of settin shaft 146, which will thereupon be rocketf, by s ring 147. The rocking of shaft 146 suspen s the operation of the printing and normalizing devices as follows:

A printing operation is prevented during the conversion of the complemental amount on the totalizer by means of a spring actuated arm 148 which is released by the rearward movement of arm 145 and will thereupon engage a latch 149 of the hammer restoring bail 707, latching said bail in osition to prevent printing operation 0 the hammers 715 (Fig. 8).

The release of the total key from its latch 223 (Fig. 5) is prevented by an arm 150 connected by link 151 with arm 152 of settin shaft 146, arm 150 being held in the rocke position of the shaft in engagement with pawl 222 mounted on the latch striker 220, so that said pawl may not be operated to actuate the striker so ion as setting shaft 146 remains in rocked position. Total key 278 thus remaining latched in operative position, the

subsequent operations will all be of a subtractive nature, and the column latches 214 will remain inactive due to the total key remaining latched.

The latch 141 (Fig. 8), controlling the two armed lever 140 and the extreme left hand type bar, having been tripped in the total setting operation, is held out of latching position when the total is negative by a pivoted member 153, engaging beneath said latch, member 153 being connected by a link 154 with an arm 155 of setting shaft 146. Lever 140 being free from latch 141 will operate to its extreme degree of movement in the subtractive true negative total setting operation of the accumulator hereinbefore referred to, and will thereby subtract nine from the accumulator'wheel with which it is engaged, whereby the subtractive carry transserved to engage the motor clutch, for the I purpose of restoring the segments, etc., and in order that a second cycle of the motor drive mechanism may be secured, in which carried downward b from the latch, will be drawn rearwardly by out of latching engagement wi spring pressed member 160 (Fig. 5) and a In 161 of plate 159 will engage ug 162 of a lirfk 130 (now in its lower position) connected to the trigger 131, holdin this trigger Eh the clutch lever 106.

In order to lock the segment stop members 143 in the positions assumed during the preliminary total takin the plate 159 is provided with a pivote extension 163 (Figs. 3 5 and 9) which, in the rearward movement of plate 159 is held under tension against the pin 164 mounted on one end of an intermediately fulcrumed lever 165. The consequent relative movement of plate 159 and extension 163 will release latching pawl 158 from the restraint of the second latching pawl 170, the former pawl falling upon latc arm 157. The forward arm of lever 165 operates a locking bail 166, engaging serrations of the stops 143, the lever being normally operated by a double faced cam 167 secured to arm 316 of operatin shaft 301. As arm 316 moves forward roc ing bail 166 is released, by the action of cam 167, while in the rearward movement of arm 316 the cooperating roller of lever 165 will ride the upper face of cam 167, whereby the locking ball is brought into contact with the stops 143. This will be the operation of the parts during the first cycle of motor operation, which restores the segments. As the rear end of lever 165 is lifted by cam 167, however, in the return movement of the parts, pin 164 will be lifted free of extension 163, and said extension will immediately move under the pin, holding locking bail 166 in engaging position, where it will remain durin the subtractive stroke of the second eye e of motor operation, that is is to say, while the segments move the wheels subtractively from 0 registering position to the extent allowed by the stops 143. At the end of this stroke a pin 168 m arm 316 will engage a seat 169 in extension 163 and will move plate 159 and its extension 163 forwardly, in which position the parts will be held by latching lpawl 158, moving into engagement wit the shoulder of latch arm 157.

The true negative total being now re istered in the accumulator, the second tota izing operation occurring on the final motor operation cycle and, accom lished by the means hereinbefore describe will result in the printing of the true negative total. The

total latchis controlled to initiate this secnarily, would result in the tripping of the total latch 620 at the end of the cycle of motor 0 ration (first cycle) which serves to restore t e segment levers 610. This tripping action woul occur because in 132 in the latchoperating arm 621 (Fig. 5), held depressed bly ke 278 and arm- 229, is contacted b s oul or 133, as rocker cam 318 restores ush 333 135 to normal position, tripping atch This tripping action is delayed until the completlon of the subtractive o ration of the machine by the adjustment 0 a member 178 (Flg. 6) (pivoted upon an arm 172 of shaft 171, sai member lying normally between rocker cam 318 and push rod 135. Shaft 171 is rigid with plate 159, and, as said plate moves rearwardly at the end of the first total setting operation, pivoted member 173 will be carried out of reg1ster with rocker cam 318, so that, upon the subsequent return of said cam to normal position, push rod 135 will not be operated. During the subtractlve cycle of operation, however, plate 159, being restored to normal position by in 168 and part-169, pivoted member 17 3 wil be restored to position beneath rocker cam 318 and at the end of this cycle the push rod will rock plate 134 and trip the total latch. I Tlnstripping movement of ush rod 135 is utilized to restore setting sha .146 to normal position. For this purpose shaft 146 is provided with an arm 175 carrying the pawl 176 which, as shaft 146 is rocked forwardly is held by spring 177 in. contact with a shoulder 178 of push rod 135. As the rod is moved downwardly, pawl 17 6 and arm 175 Wlll rock the setting shaft back to normal position. Setting shaft 146 and the parts controlled thereby being restored to normal position, and total latch 620 being tripped, an ordinaryv total taking operation Wlll. now occur.

A special type bar, bearing symbols designating difierent operations of the machine is adjusted to align the total symbol on the printing line b means of a pm 612 (Fig. 10) engaging t e appro riate notch of a stop lever 225. In case 0 a negative total the symbol is changed as follows:

Setting shaft 146, through arm 17 8 (Fig. 4) and link 179 operates a pivoted member 180 so that in the forward movement of the shaft a lug 181 of member 180 is brought in front of a lug 182 of a pawl 183 mounted upon an arm 184.

A setting shaft 146 is restored to normal position lug 181. will move pawl 183 and arm 184 downward so that a hook 185 of said arm will stand in the path of movement of the symbol type pin 612 holding the symbol lever in a position difierent from that assumed when the pin engages the shoulder of member 225, and bringing the negative total symbol type to the reading line.

' I claim:

In a re 'ster having a totalizer and total printing evices; means for transferring a total from said totalizer to said printing de- 0 vices and for effecting the printin including means settable by the highest or er printing element in the adjustment thereof in accordance with a com lemental registration" on said totalizer, an means controlled by said settable means and operable to change acomplemental setting in said printing devices into the equivalent true negative amount.

Si ed at Orange, in the county of Essex and tate of New Jersey, this 21st day of August, A. D. 1931. i LORIN G P. CROSMAN, 

